PROTON DRIVER STRIPPING FOILS

1
PROTON DRIVERSTRIPPING FOILS

• J. Lackey
• March 15 , 2005

2
Introduction

• Stripping H- at 8 Gev
• Injection
• Foil Topics
• Conclusions

3
Stripping H- at 8 Gev

• H- Injection Workshop
• December 9 10, 2004, FNAL

All talks can be found on http// www- bd.
fnal. gov/ pdriver/ H- workshop/ hminus. html
4
Standard Carbon Foils
322 ug/cm2
513 ug/cm2
5
Injection
From Drozhdin
6
Foil Topics

• Stripping efficiency
• Multiple Coulomb scattering
• Large angle Coulomb scattering
• Energy straggling
• Heating
• Stress and buckling
• Lifetime
• Radiation
• Diamond foil

W. Chou H- injection
mini-workshop, December 9-10, 2004, Fermilab
7
Stripping Efficiency
8 GeV, 0.5 H0
W. Chou H- injection
mini-workshop, December 9-10, 2004, Fermilab
8
Heating Foil Damage
9
Heating Foil Damage
10
FOIL LIFETIME
This presentation is an excellent synopsis of the
current status of foil development.
11
FOIL LIFETIME
12
FOIL LIFETIME
13
FOIL LIFETIME
14
FOIL LIFETIME
15
FOIL LIFETIME
16
Workshop Conclusions
17
CONCLUSIONS

• We are watching and benefiting from the SNS
  effort and others.
• If they can do it so can we.
• Foil Lifetime scaling from rep rate
• BNL/SNS 0.1
• BNL/PD 10
• R D --- what can we do?
• More Foil testing in our 750 Kev Line
• Single Edge supported Foils
• Instrumentation development, fast temperature
  measurements