Infl6: Difference between revisions

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* [Apr 19]
* [Apr 19]
* <sup>12</sup>B(t,p)<sup>14</sup>B
* <sup>12</sup>B(t,p)<sup>14</sup>B
* [http://www.phy.anl.gov/elog/INFL001_19O/0 Location in in-flight ELOG]
* [http://www.phy.anl.gov/elog/INFL001_19O/144 Location in in-flight ELOG]
* @ HELIOS (shortstop or thirdbase?)
* @ HELIOS (shortstop or thirdbase?)


== Secondary Beam ==
== Secondary Beam ==
*'''<sup>12</sup>B<sup>5+</sup>'''
*'''<sup>12</sup>B<sup>5+</sup>'''
*Energy: XXX MeV, XXX Tm  
*Energy: 86.8 MeV, 0.9316 Tm
*Requested rate and purity: 1x10<sup>6</sup> pps, >50 %
*Achieved rates [Apr/May 19]:
** 17k / pnA [HP/Exit w/ 5mm slits], 4.8k / pnA SSX, 1.8k / pnA SST
** w/ 150 - 200 pnA on Gas cell -> ~2-4e5 pps assumed (x1000 attenuator suggested ~5e4 pps)
*Purity:
**[Apr 19] ~90% best


==Tuning Info==
==Tuning Info==
Target: D2 Gas w/ 1.9 mg/cm<sup>2</sup> HAVAR windows (3.7 cm, 1400 mbarr, T=290K)
Target: D2 Gas w/ 1.9 mg/cm<sup>2</sup> HAVAR windows (3.7 cm, 1400 mbarr, T=90K)


{| class="wikitable"
{| class="wikitable"
|-
|-
! Beam !! Label !! Energy [MeV] (calc) !! Brho [Tm] (calc) !! Energy [MeV] (tof) !! Brho [Tm] (tof) !! Scale Factor
! Beam !! Label !! Energy [MeV] !! Brho [Tm] !! calc / TOF  !! Scale Factor !! DE-E (50 / 1000 um) !! DE-E (150 / 1000)
|-
| <sup>11</sup>B<sup>4+</sup> || primary || 95 || 1.1666 || TOF || ||11.8 / 83 MeV || 40.5 / 54.5 MeV
|-
|-
| <sup>11</sup>B<sup>XXX+</sup> || primary || 95 || XXX || || ||
| <sup>11</sup>B<sup>5+</sup> || degraded || 89 || 0.90318 || TOF || || 12.5 / 76 MeV || 44 / 45 MeV
|-
|-
| <sup>11</sup>B<sup>5+</sup> || degraded || 93 || || || ||
| <sup>12</sup>B<sup>5+</sup> || secondary || 86.8 || 0.9316 || calc || 3.14% || 13.7 / 73 MeV || 49 / 37 MeV
|-
|-
| <sup>12</sup>B<sup>5+</sup> || secondary || 85.4 || 0.924 || || ||
| <sup>11</sup>B<sup>4+</sup> || contaminant || 60.7 || 0.9316 || calc || || 17.5 / 43 MeV || 60.7 / 0 MeV
|}
|}


* Scale Factor:
**[Date 19] <sup>12</sup>B<sup>5+</sup> [86.8 MeV] from <sup>11</sup>B<sup>5+</sup> [89 MeV] '''scale factor = 0.9316/0.90318 = 0.0314'''
* Expected calculated rates for tuning ('''acceptable - ideal'''):
**At EXIT Detector: '''>12000-14000 pps/pnA''' (midplane slits set to ~+-4 mm, ~3% momentum acceptance).
**At HELIOS Cross Detector: '''>5000-6000 pps/pnA''' (assumes ~40% transmission, maybe on the high side...)
**At HELIOS Target Detector: '''>4000-5000 pps/pnA''' (assumes excellent [80%] transmission through the HELIOS array, maybe on the high side...)


* Scale Factor:
**[Date 19] <sup>A</sup>Z<sup>q+</sup>-><sup>A</sup>Z<sup>q+</sup> scale factor = XXX/XXX = XXX
== Primary Beam (energy) [max pnA] + Target (thickness) ==
== Primary Beam (energy) [max pnA] + Target (thickness) ==
* [Date 19] <sup>A</sup>Z<sup>q+</sup> (XXX MeV from TOF)[~1 pnA] + D2 Gas w/ 1.9 mg/cm<sup>2</sup> HAVAR windows (3.7 cm, 1400 mbarr, T=290K)
* [Date 19] <sup>11</sup>B<sup>4+(?)</sup> (95 MeV from TOF)[150->200 pnA] + D2 Gas w/ 1.9 mg/cm<sup>2</sup> HAVAR windows (3.7 cm, 1400 mbarr, T=90K)
 
== Degraded Beam (energy) + Target ==
== Degraded Beam (energy) + Target ==
* [Date 19] <sup>A</sup>Z<sup>q+</sup> [XXX MeV from TOF] + D2 Gas w/ 1.9 mg/cm<sup>2</sup> HAVAR windows (3.7 cm, 1400 mbarr, T=290K)
* [Date 19] <sup>11</sup>B<sup>5+</sup> [~89 MeV from TOF] + D2 Gas w/ 1.9 mg/cm<sup>2</sup> HAVAR windows (3.7 cm, 1400 mbarr, T=90K)
 
*Requested rate: Xx10<sup>X</sup> pps
*Achieved rate (pps/pnA):
**[Date 19] (XXX pps/pnA) [XXX pnA <sup>XX</sup>XX<sup>XX</sup>]
*Purity:
**[Date 19] XXX% best

Latest revision as of 18:43, May 29, 2019

General Info

Secondary Beam

  • 12B5+
  • Energy: 86.8 MeV, 0.9316 Tm
  • Requested rate and purity: 1x106 pps, >50 %
  • Achieved rates [Apr/May 19]:
    • 17k / pnA [HP/Exit w/ 5mm slits], 4.8k / pnA SSX, 1.8k / pnA SST
    • w/ 150 - 200 pnA on Gas cell -> ~2-4e5 pps assumed (x1000 attenuator suggested ~5e4 pps)
  • Purity:
    • [Apr 19] ~90% best

Tuning Info

Target: D2 Gas w/ 1.9 mg/cm2 HAVAR windows (3.7 cm, 1400 mbarr, T=90K)

Beam Label Energy [MeV] Brho [Tm] calc / TOF Scale Factor DE-E (50 / 1000 um) DE-E (150 / 1000)
11B4+ primary 95 1.1666 TOF 11.8 / 83 MeV 40.5 / 54.5 MeV
11B5+ degraded 89 0.90318 TOF 12.5 / 76 MeV 44 / 45 MeV
12B5+ secondary 86.8 0.9316 calc 3.14% 13.7 / 73 MeV 49 / 37 MeV
11B4+ contaminant 60.7 0.9316 calc 17.5 / 43 MeV 60.7 / 0 MeV
  • Scale Factor:
    • [Date 19] 12B5+ [86.8 MeV] from 11B5+ [89 MeV] scale factor = 0.9316/0.90318 = 0.0314
  • Expected calculated rates for tuning (acceptable - ideal):
    • At EXIT Detector: >12000-14000 pps/pnA (midplane slits set to ~+-4 mm, ~3% momentum acceptance).
    • At HELIOS Cross Detector: >5000-6000 pps/pnA (assumes ~40% transmission, maybe on the high side...)
    • At HELIOS Target Detector: >4000-5000 pps/pnA (assumes excellent [80%] transmission through the HELIOS array, maybe on the high side...)

Primary Beam (energy) [max pnA] + Target (thickness)

  • [Date 19] 11B4+(?) (95 MeV from TOF)[150->200 pnA] + D2 Gas w/ 1.9 mg/cm2 HAVAR windows (3.7 cm, 1400 mbarr, T=90K)

Degraded Beam (energy) + Target

  • [Date 19] 11B5+ [~89 MeV from TOF] + D2 Gas w/ 1.9 mg/cm2 HAVAR windows (3.7 cm, 1400 mbarr, T=90K)
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