Difference between revisions of "Infl8"

From ATLAS Accelerator In-Flight Beam Program
Jump to navigation Jump to search
(Created page with "== General Info == * RAISOR Devel * [June 19] * <sup>29</sup>Al, <sup>31</sup>Si * [http://www.phy.anl.gov/elog/INFL001_19O/144 Location in in-flight ELOG] * @ HOMEPLATE and p...")
 
Line 24: Line 24:
 
*Target 3: D2 Gas w/ 1.9 mg/cm<sup>2</sup> HAVAR windows (3.7 cm, 1400 mbarr, T=90K) [<sup>31</sup>Si<sup>14+</sup>]
 
*Target 3: D2 Gas w/ 1.9 mg/cm<sup>2</sup> HAVAR windows (3.7 cm, 1400 mbarr, T=90K) [<sup>31</sup>Si<sup>14+</sup>]
  
*<sup>29Al</sup>
+
'''<sup>29</sup>Al'''
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
Line 47: Line 47:
 
**At HELIOS Cross Detector: '''>5000-6000 pps/pnA''' (assumes ~40% transmission, maybe on the high side...)
 
**At HELIOS Cross Detector: '''>5000-6000 pps/pnA''' (assumes ~40% transmission, maybe on the high side...)
  
*<sup>31</sup>Si
+
'''<sup>31</sup>Si'''
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-

Revision as of 19:54, May 15, 2019

General Info

Secondary Beam(s)

  • 29Al13+, 31Si14+
  • Energy: ~10 MeV/u for each
  • Requested rate and purity: 5x104 pps, >10 %
  • Achieved rate (pps/pnA):
    • [June 19] (XXX pps/pnA) [XXX pnA XXXXXX]
  • Purity:
    • [June 19] XXX% best

Tuning Info

Primary Beam (energy) [max pnA]

  • 30Si?? [11.5 MeV/u, 345 MeV][120 / 50 pnA]
  • Target 1: 4 mg/cm2 Be (29Al13+)
  • Target 2: 12 mg/cm2 Be (29Al13+)
  • Target 3: D2 Gas w/ 1.9 mg/cm2 HAVAR windows (3.7 cm, 1400 mbarr, T=90K) [31Si14+]

29Al

Beam Label Energy [MeV] Brho [Tm] calc / TOF Scale Factor DE-E (50 / 1000 um) DE-E (150 / 1000) Target
30Si??+ primary 345 XXX TOF XXX / XXX MeV XXX / XXX MeV XXX
30Si??+ degraded 345 XXX TOF XXX / XXX MeV XXX / XXX MeV 4 mg/cm2 Be
B5+ secondary 89 0.90318 TOF 12.5 / 76 MeV 44 / 45 MeV 4 mg/cm2 Be
12B5+ degraded 86.8 0.9316 calc 3.14% 13.7 / 73 MeV 49 / 37 MeV 12 mg/cm2 Be
11B4+ secondary 60.7 0.9316 calc 17.5 / 43 MeV 60.7 / 0 MeV 12 mg/cm2 Be
  • 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...)

31Si

Beam Label Energy [MeV] Brho [Tm] calc / TOF Scale Factor DE-E (50 / 1000 um) DE-E (150 / 1000) Target
30Si??+ primary 345 XXX TOF XXX / XXX MeV XXX / XXX MeV XXX
30Si??+ degraded 345 XXX TOF XXX / XXX MeV XXX / XXX MeV XXX
B5+ secondary 89 0.90318 TOF 12.5 / 76 MeV 44 / 45 MeV 4 mg/cm2 Be
12B5+ secondary 86.8 0.9316 calc 3.14% 13.7 / 73 MeV 49 / 37 MeV 12 mg/cm2 Be
11B4+ secondary 60.7 0.9316 calc 17.5 / 43 MeV 60.7 / 0 MeV D2 gas
  • 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...)