Difference between revisions of "Infl18"

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== Secondary Beam ==
 
== Secondary Beam ==
 
*'''<sup>22</sup>Mg<sup>12+</sup>'''
 
*'''<sup>22</sup>Mg<sup>12+</sup>'''
*Energy: ~54 MeV (from fusion evap of (<sup>3</sup>He,n)
+
*Energy: ~70 MeV (from fusion evap of (<sup>3</sup>He,n)
*Requested rate and purity: 1x10<sup>3</sup> pps, >10 %
+
*Requested rate and purity: 1x10<sup>3</sup> pps, >20 %
 
*Achieved rate (pps/pnA):
 
*Achieved rate (pps/pnA):
**[July 19]
+
**[July 19] ~2-3 pps/pnA 12+, ~6-7 pps / pnA 11+
*** XXX
+
** [Dec 20]
 
*Purity:
 
*Purity:
**[June 19]  
+
**[July 19] poor, no sweeper.
*** XXX
+
** [Dec 20]
  
 
==Tuning Info==
 
==Tuning Info==
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{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
! Beam                          !! Label !! Energy [MeV]  !! Brho [Tm]  !! calc / TOF  !! Scale Factor !! q-State Fraction !! DE-E (10 / 1000) || Target
+
! Beam                          !! Label !! Energy [MeV]  !! Brho [Tm]  !! calc / TOF  !! Scale Factor !! q-State Fraction (0.1 C foil) !! DE-E (10 / 1000) || Target
 
|-
 
|-
| <sup>20</sup>Ne<sup>XXX+</sup> || primary || 125          || XXX || calc              ||              || || || none
+
| <sup>20</sup>Ne<sup>XXX+</sup> || primary || 125          || XXX || calc              ||              ||                             || || none
 
|-
 
|-
| <sup>20</sup>Ne<sup>10+</sup> || degraded ||  87           || 0.60107 || calc         ||              || || || 3He gas cooled
+
| <sup>20</sup>Ne<sup>10+</sup> || degraded ||  87   (98!)        || 0.60107 || calc   (tof!)      ||              || 58, 41, 0                    || 14/74 || 3He gas cooled->Really though??
|-
+
|-
| <sup>22</sup>Mg<sup>12+</sup> || secondary || 73          ||0.48116 ||calc            ||  0.80        || || || 3He gas cooled
+
| <sup>22</sup>Mg<sup>12+</sup> || secondary || 73          ||0.48116 ||calc            ||  0.80        || 17, 50, 30, 3              || 22/48 || 3He gas cooled
 
|-
 
|-
 
|}
 
|}
  
 
* Scale Factor:  
 
* Scale Factor:  
**[June 19] Assuming FusionEvap
+
**<sup>22</sup>Mg<sup>12+</sup> [~73 MeV] from <sup>20</sup>Ne<sup>10+</sup> [87 MeV] '''calculated scale factor = 0.80''' -> will scan for correct value
**<sup>22</sup>Mg<sup>12+</sup> [53.6 MeV] from <sup>20</sup>Ne<sup>10+</sup> [75.7 MeV] '''scale factor = 0.4060/0.55048 = 0.7375'''
 

Latest revision as of 20:32, December 1, 2020

General Info

22Mg beam with an energy of about 70 MeV and deliver it to the Split-Pole Spectrograph beam line with a minimum intensity of 1×103 22Mg/s and purity of 20% or more.

Secondary Beam

  • 22Mg12+
  • Energy: ~70 MeV (from fusion evap of (3He,n)
  • Requested rate and purity: 1x103 pps, >20 %
  • Achieved rate (pps/pnA):
    • [July 19] ~2-3 pps/pnA 12+, ~6-7 pps / pnA 11+
    • [Dec 20]
  • Purity:
    • [July 19] poor, no sweeper.
    • [Dec 20]

Tuning Info

Primary Beam (energy) [max pnA]:

  • 20NeXXX+ 6.25 MeV/u, 125 MeV, 55 pnA

Target:

  • 3He Gas w/ 1.9 mg/cm2 HAVAR windows (3.7 cm, 1400 mbarr, T=90K)
  • 0.1 mg/cm2 C reset foil
=====22Mg12+===========
Beam Label Energy [MeV] Brho [Tm] calc / TOF Scale Factor q-State Fraction (0.1 C foil) DE-E (10 / 1000) Target
20NeXXX+ primary 125 XXX calc none
20Ne10+ degraded 87 (98!) 0.60107 calc (tof!) 58, 41, 0 14/74 3He gas cooled->Really though??
22Mg12+ secondary 73 0.48116 calc 0.80 17, 50, 30, 3 22/48 3He gas cooled
  • Scale Factor:
    • 22Mg12+ [~73 MeV] from 20Ne10+ [87 MeV] calculated scale factor = 0.80 -> will scan for correct value